发明名称 |
Apparatus and method for absorbance measurement and data generation |
摘要 |
The characteristics of a sample body fluid are determined in a chemical analyzer by sensing the transmittance of light by the sample fluid and reagents during a reaction period. A beam of light is directed onto a cuvette containing the sample body fluid and reagent. A portion of the light is absorbed by the cuvette, the sample fluid and reagent. The remainder of the light is transmitted to a sensor which provides an analog electrical transmittance signal proportional thereto. The analog signal is logarithmically amplified, and is applied to a peak detector. A structure adjacent the cuvette provides a strobe signal such that the analog signal always has a peak amplitude during the strobe signal. The peak detector senses the peak amplitude of the analog signal during the strobe signal and the peak amplitude is converted to a digital value representing absorbance.
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申请公布号 |
US4305723(A) |
申请公布日期 |
1981.12.15 |
申请号 |
US19800200144 |
申请日期 |
1980.10.24 |
申请人 |
COULTER ELECTRONICS, INC. |
发明人 |
KOLBER, STEVEN N.;RODRIQUEZ, RODOLFO R. |
分类号 |
G01N21/25;(IPC1-7):G01N35/04;G01N21/03;G01N21/13 |
主分类号 |
G01N21/25 |
代理机构 |
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